{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50278306",
    "entityType": "User",
    "nonce": "0xf2fd6af5b42dbb3522335ecd7a5295e72602b53e35aaab2553976f6d6a8fc644",
    "signature": "0xe9e5d6a11eb078516b62b6358a11e459d27fcb8b530aa82b9b5fd7c39ca4bf040e932ea6938d006fdb02cd410fd0044f9761304d7b3cb749deeedf9ae94514961c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}